{"id":6480,"date":"2019-03-05T10:55:39","date_gmt":"2019-03-05T10:55:39","guid":{"rendered":"https:\/\/teleplanforsberg.com\/?p=2769"},"modified":"2022-07-13T11:57:44","modified_gmt":"2022-07-13T10:57:44","slug":"gps-era-week-rollover","status":"publish","type":"post","link":"https:\/\/teleplanforsberg.com\/index.php\/2019\/03\/05\/gps-era-week-rollover\/","title":{"rendered":"GPS Era Week Rollover"},"content":{"rendered":"\n

6 April 2019<\/h3>\n\n\n\n

On 6 April 2019, a significant event in GPS will occur, however, it is highly unlikely that you will experience any disruption to your current service.<\/p>\n\n\n\n

On this day, the transmitted GPS week number in the navigation message will rollover from 1023 to 0. This will be the second era rollover since GPS time was established. NovAtel commercial receivers will continue to increment the week number from 2047 to 2048 and will not roll back to 0 or 1024.<\/p>\n\n\n\n

In preparation for this event, NovAtel has tested their receivers using a simulator and have determined the following.<\/p>\n\n\n\n

NovAtel OEM6 receivers with firmware >= 6.510 and OEM7 receivers<\/strong> will continue to operate as expected during and after the rollover. The week number will continue to increment.<\/p>\n\n\n\n

OEM6 receivers with firmware < 6.510, OEMStar, OEMV and OEM4<\/strong> receivers <\/strong>will continue to increment the week reported and operate normally during and after the rollover.<\/p>\n\n\n\n

However, one issue was identified where the receivers will report an incorrect week number in the \u201cref week\u201d field of the RAWALM log if the current week number and the almanac week number are in different eras.<\/p>\n\n\n\n

The reference week value will be correct once both the current week number and the almanac week number are in the new era. It is recommended that users do not use the reference week value in the RAWALM log, or if it is required, to decode the WNa directly from the SV ID 51 subframe page data. Note: The header of the RAWALM message will be correct and the ALMANAC log is not affected.<\/p>\n\n\n\n

For NovAtel ground reference station receivers, please contact NovAtel Support<\/a><\/p>\n\n\n\n

Please note that firmware prior to OEM4 2.322 was not tested.<\/p>\n\n\n\n

Receiver firmware can be downloaded at the link below
Download link: http:\/\/www.novatel.com\/support\/info\/view\/gnss-receivers<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

On 6 April 2019, a significant event in GPS will occur, the transmitted GPS week number in the navigation message will rollover from 1023 to 0. <\/p>\n","protected":false},"author":5,"featured_media":7867,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[18],"tags":[],"class_list":["post-6480","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-latest-news"],"yoast_head":"\nGPS Era Week Rollover 2019<\/title>\n<meta name=\"description\" content=\"On 6 April 2019, a significant event in GPS will occur, and will be the second era rollover since GPS time was established.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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